Manley Street Flo valves are excellent-quality valves at an affordable price. All are made from stainless steel (intakes are NK-841; exhausts are XH-424) with chrome stems and hardened valve tips. Street Flo series valves are fully machined and swirl polished, and both the materials used and the heat-treating process are superior to those of the Budget replacement series valves. They're available in a variety of head diameters, with either straight stems or undercut "Pro Flo" stems for increased flow. Order the set that's compatible with your vehicle and engine application.

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MANLEY Valve, Pro Flo, Intake, 2.065 in. Head Dia, 0.372 in. Stem Dia, 5.218 in. Length, BBC, Set of 8

MANLEY Valve, Pro Flo, Intake, 2.065 in. Head Dia, 0.372 in. Stem Dia, 5.218 in. Length, BBC, Set of 8

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MANLEY Valve, Race Master, Exhaust, 1.88 in. Head Dia, 0.3415 in. Stem Dia, 5.422 in. Length, BBC, Set of 8

MANLEY Valve, Race Master, Exhaust, 1.88 in. Head Dia, 0.3415 in. Stem Dia, 5.422 in. Length, BBC, Set of 8

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AFR Exhaust Valve, BBC 18° 11/32 Inconel 1.800 X 5.935 O.A.L. Tulip Race, Set

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MANLEY Valve, Race Master, Intake, 2.25 in. Head Dia, 0.3415 in. Stem Dia, 5.494 in. Length, BBC, Set of 8

MANLEY Valve, Race Master, Intake, 2.25 in. Head Dia, 0.3415 in. Stem Dia, 5.494 in. Length, BBC, Set of 8

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MANLEY Valve, Race Master, Exhaust, 1.94 in. Head Dia, 0.3415 in. Stem Dia, 5.422 in. Length, BBC, Set of 8

MANLEY Valve, Race Master, Exhaust, 1.94 in. Head Dia, 0.3415 in. Stem Dia, 5.422 in. Length, BBC, Set of 8

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AFR Exhaust Valve, BBC 24° Stainless Steel 1.880 x 5.450 O.A.L. STD 11/32 Tulip Race, Set

AFR Exhaust Valve, BBC 24° Stainless Steel 1.880 x 5.450 O.A.L. STD 11/32 Tulip Race, Set

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